The Hill-start Control Of Electric Park Brake

The purpose of this thesis is to design electric park brake to help driver to start on hills,prevent backward motion and park automatically.At first, in the paper, the author introduces the characteristic and the development of foreign products and analyzes the domestic status. Next, the author ascertains the direction and the goal for studying the electric park brake.This paper describes the working status of the vehicle on hill after being familiar with the principle of the foreign products. At the same time, there is also a systematic analysis among clutch,throttle and other parts. So the challenge and difficulty have been realized clearly. At last, a new control method that differs form other products with lots of advantages has been presented to help driver to start on hill.This paper makes use of the theory of mechanical design and manufacture to design and produce electric park brake actuator. This actuator can match the requirement of most mini vehicles in accordance with simple structure and high reliability level. In order to improve,transplant and measure in the room, a simple test bench of electric park brake is developed.This paper tries to utilize the strain measuring technology to develop a sensor. This method can measure the torque of caliper stilt through one sensor instead of applying several sensors. After selecting a suitable microchip, the circuit is designed soon. When choosing the hardware the ability and cost, especially the preparation for future study are considered. The program uses a simple algorithm to acquire the signal of sensor and accomplish controlling brake motor. The result shows that program was correct and could realize the expected target.At the end of the thesis the idea for further research on this topic is provided.